//*****************************************************************
//  pp23.java   Author:20172330
//
//***********************************************************

public class pp23
{
public static void main(String []args)
   {
   double num1 = 5.14;
   double num2 = 3.16;
   double jia = num1 + num2;
   double jian = num1 - num2;
   double cheng = num1 * num2;

   System.out.println("num1 + num2 =" + jia);
   System.out.println("num1 - num2 =" + jian);
   System.out.println("num1 * num2 =" + cheng);
   }
}
